Otis, Thank you.
I have downloaded and it shows in LINQPad7 treeview (it is now showing in treeview in LINQPad7), can not write code as getting exception.
TypeInitializationException•••
The type initializer for 'SD.LLBLGen.Pro.DQE.SqlServer.DynamicQueryEngine' threw an exception.
TargetSite	
RuntimeMethodInfo•••
DynamicQueryEngine.Configure (SQLServerDQEConfiguration configuration)
Message	The type initializer for 'SD.LLBLGen.Pro.DQE.SqlServer.DynamicQueryEngine' threw an exception.
Data	
(0 items)
InnerException	
ORMGeneralOperationException•••
DbProviderFactory information for compatibilitylevel SqlServer2012 wasn't properly initialized.
HelpLink	null
Source	SD.LLBLGen.Pro.DQE.SqlServer
HResult	-2146233036
StackTrace	   at SD.LLBLGen.Pro.DQE.SqlServer.DynamicQueryEngine.Configure(SQLServerDQEConfiguration configuration)
   at SD.LLBLGen.Pro.DQE.SqlServer.SQLServerDQEConfiguration.Configure()
   at SD.LLBLGen.Pro.ORMSupportClasses.RuntimeConfiguration.ConfigureDQE[TDQEConfig](Action`1 configureFunc)
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
   at System.Reflection.MethodInvoker.Invoke(Object obj, IntPtr* args, BindingFlags invokeAttr)
TypeName	SD.LLBLGen.Pro.DQE.SqlServer.DynamicQueryEngine